High step‐up active switched coupled inductor DC‐DC converter with voltage multiplier. (13th July 2022)

• Record Type: Journal Article
• Authors: Andrade, António Manuel Santos Spencer; Faistel, Tiago Miguel Klein; Toebe, Ademir; Guisso, Ronaldo António; da Silva, Mauricio Mendes
• Is Part Of: International journal of circuit theory and applications. Volume 50:Number 11(2022)
• Page Start: 3911
• Page End: 3925
• Publication Date: 2022-07-13
• Subjects: active switched coupled inductor -- active switched inductor -- high step‐up -- high voltage gain -- voltage multiplier; Electric circuit analysis -- Periodicals; 621.319205
• DOI: 10.1002/cta.3369
• Languages: English
• ISSNs: 0098-9886

Abstract

Abstract: High step‐up DC‐DC converters are commonly used in new energy applications such as DC microgrid, photovoltaic cell, and fuel cell. Thus, this article introduces a new nonisolated high step‐up DC‐DC converter based on active switched coupled inductor with a voltage multiplier cell. The proposed converter presents low current and voltage stress across the switches owing of the dual active switches structure. Besides that, by the voltage multiplier cell (one diode and one capacitor), the voltage gain of proposed converter is increased. In addition, it can be highlighted that the proposed converter has low component count, simplicity of operation in continuous and discontinuous conduction mode, and energy stored in the leakage inductor that is recycled in the capacitor of voltage multiplier cell. This article discussed the principle of operation, the ideal and nonideal voltage gain, external characteristic, voltage and current stress, design guidelines, and performance comparison with previous high step‐up converters. Finally, a prototype circuit with input power 300 W, input voltage 30 V, and output voltage 400 V was built in the laboratory to verify the theoretical evaluation, and the maximum achieved efficiency was 95.35% at nominal power 300 W. Abstract : This article introduces a new nonisolated high step‐up DC‐DC converter based on active switched coupled inductor with a voltage multiplier cell. The proposed converter presents low current and voltage stress across the switches owing of the dual active switches structure.